<template>
  <div>
    <TypeNav></TypeNav>
    <div class="main">
      <div class="py-container">
        <!--bread-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <li class="with-x" v-show="searchParams.categoryName">{{searchParams.categoryName}}
              <i @click="removeCategoryName">×</i>
            </li>
            <li class="with-x" v-show="searchParams.keyword">{{searchParams.keyword}}
              <i @click="removeKeyword">×</i>
            </li>
            <li class="with-x" v-show="searchParams.trademark">{{searchParams.trademark.split(':')[1]}}
              <i @click="removeTrademark">×</i>
            </li>
            <li class="with-x" v-for="(i,index) in searchParams.props" :key="index">
              {{i.split(':')[1]}}
              <i @click="removeProp(index)">×</i>
            </li>
          </ul>
        </div>

        <!--selector-->
        <SearchSelector @changeBrand='changeBrand' @changeAttr='changeAttr'/>

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li :class="{active:searchParams.order.indexOf('1')!==-1}" @click="changeOrder('1')">
                  <a>
                    综合
                    <i v-show="searchParams.order.indexOf('1')!==-1" 
                      class="iconfont"
                      :class="{'icon-xiajiangjiantou':searchParams.order.indexOf('desc')!==-1, 'icon-shangshengjiantou':searchParams.order.indexOf('asc')!==-1}"
                      style="font-size:12px"></i>
                  </a>
                </li>
                <li :class="{active:searchParams.order.indexOf('2')!==-1}" @click="changeOrder('2')">
                  <a>
                    价格
                    <i v-show="searchParams.order.indexOf('2')!==-1"
                      class="iconfont"
                      :class="{'icon-xiajiangjiantou':searchParams.order.indexOf('desc')!==-1, 'icon-shangshengjiantou':searchParams.order.indexOf('asc')!==-1}"
                      style="font-size:12px"></i>
                  </a>
                </li>
              </ul>
            </div>
          </div>
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="good in goodsList" :key="good.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link :to='`/detail/${good.id}`'>
                      <img v-lazy="good.defaultImg"/>
                    </router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{good.price}}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a
                      target="_blank"
                      href="item.html"
                      title="促销信息，下单即赠送三个月CIBN视频会员卡！【小米电视新品4A 58 火爆预约中】"
                      >
                      {{good.title}}
                      </a
                    >
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a
                      href="success-cart.html"
                      target="_blank"
                      class="sui-btn btn-bordered btn-danger"
                      >加入购物车</a
                    >
                    <a href="javascript:void(0);" class="sui-btn btn-bordered"
                      >收藏</a
                    >
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <Pagination :pageNo='searchParams.pageNo' :pageSize='searchParams.pageSize' :total='total' :continuous='5' @changePage='changePage'></Pagination>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from "./SearchSelector/SearchSelector.vue";
import {mapGetters,mapState} from 'vuex'
import Pagination from '../../components/Pagination/Pagination.vue';

export default {
  components: {
    SearchSelector,
    Pagination,
  },
  data() {
    return {
      searchParams:{
        category1Id: '',
        category2Id: "",
        category3Id: "",
        categoryName: "",
        keyword: "",
        order: "1:desc", //默认综合降序
        pageNo: 1,
        pageSize: 5,
        props: [],
        trademark: ""
      }
    }
  },
  methods: {
    getData(){
      this.$store.dispatch('getSearchInfo',this.searchParams)    
    },
    // 清除categoryName字段
    removeCategoryName(){
      // 置为undefined的话比空字符串从请求带宽上来说优化了一点点，因为相当于剔除了这个参数
      this.searchParams.categoryName=undefined
      this.searchParams.category1Id=undefined
      this.searchParams.category2Id=undefined
      this.searchParams.category3Id=undefined
      this.getData()
      // 地址栏也要改
      if(this.$route.params){
        this.$router.push({name:'search',params:this.$route.params})
      }else{
        this.$router.push({name:'search'})
      }
    },
    removeKeyword(){
      this.searchParams.keyword=undefined
      this.getData()
      // 兄弟组件通信，清空输入框里的文字
      this.$bus.$emit('clear')
      if(this.$route.query){
        this.$router.push({name:'search',query:this.$route.query})
      }else{
        this.$router.push({name:'search'})
      }
    },
    // 点击子组件里的品牌时，相应keyword要变化
    changeBrand(trademark){
      this.searchParams.trademark=`${trademark.tmId}:${trademark.tmName}`
      this.getData()
    },
    removeTrademark(){
      this.searchParams.trademark=''
      this.getData()
    },
    changeAttr(attr,item){
      let props=`${attr.attrId}:${item}:${attr.attrName}`
      // 数组去重，再push
      if(this.searchParams.props.indexOf(props)===-1){
        this.searchParams.props.push(props)
      }
      this.getData()
    },
    removeProp(index){
      this.searchParams.props.splice(index,1)
      this.getData()
    },
    // 改变排序
    changeOrder(signal){
      // 先拿到当前order字段
      let oriOrder=this.searchParams.order.split(':')[1] //'desc'
      let oriNumber=this.searchParams.order.split(':')[0] // '1'
      let newOrder=''
      // 这个判断逻辑其实还是有一点点绕的
      if(signal===oriNumber){
        if(oriOrder=='desc'){
          newOrder='asc'
          this.searchParams.order=`${oriNumber}:${newOrder}`
          this.getData()
        }else{
          newOrder='desc'
          this.searchParams.order=`${oriNumber}:${newOrder}`
          this.getData()
        }
      }else{
        this.searchParams.order=`${signal}:desc`
        this.getData()
      }
    },
    // 点击不同页码的回调
    changePage(pageNo){
      this.searchParams.pageNo=pageNo
      this.getData()
    }
  },
  beforeMount() {
    // 挂载前读一次数据
    Object.assign(this.searchParams,this.$route.query,this.$route.params) // ES6语法糖
  },
  mounted() {
    // 挂载的时候执行一次请求接口
    this.getData()
  },
  watch:{
    $route:{
      handler(newVal,oldVal){
        Object.assign(this.searchParams,this.$route.query,this.$route.params) // ES6语法糖
        this.getData()
        // 每一次请求完毕都要清空1、2、3级id
        this.searchParams.category1Id=''
        this.searchParams.category2Id=''
        this.searchParams.category3Id=''
      }
    }
  },
  computed:{
    ...mapGetters(['goodsList']),
    ...mapState({
      total:state=>state.search.searchInfo.total,
      pageSize:state=>state.search.searchInfo.pageSize,
      pageNo:state=>state.search.searchInfo.pageNo,
      totalPages:state=>state.search.searchInfo.totalPages
    })
  }
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  i {
                    margin-left: -5px;
                  }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      
    }
  }
}
</style>